Alteration of Bioactive Compounds in Two Varieties of Basil (<i>Ocimum basilicum</i>) Grown Under Different Light Spectra

Hosseini, Ameneh; Mehrjerdi, Mahboobeh Zare; Aliniaeifard, Sasan

doi:10.1080/0972060x.2018.1526126

Cited by 25 publications

(20 citation statements)

References 32 publications

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“…Spectrum is one of the light characteristics that considerably influence plant responses. Light quality not only influences photosynthesis but also cellular integrity, water relations, pigmentation, carbohydrate, and antioxidant status of the plants (Bayat et al, 2018;Hosseini et al, 2018;Hosseini et al, 2019). We hypothesized that different light spectra through their effects on cellular metabolism can influence the cold tolerance and quality of the spathe and hence the vase life of the Anthurium flower.…”

Section: Introductionmentioning

confidence: 99%

Postharvest Spectral Light Composition Affects Chilling Injury in Anthurium Cut Flowers

et al. 2020

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The effect of the lighting environment during postharvest storage of ornamentals has largely been neglected in previous research. Anthurium is a cold-sensitive species originating from tropical climates and is widely cultivated all around the world for its colorful spathes. To investigate the effects of light spectrum on the performance of Anthurium cut flowers under cold storage, two cultivars [Calore (red spathe) and Angel (withe spathe)] were placed at low temperature (4°C), either in darkness (D) or under different light spectra [red (R), blue (B), 70:30% red:blue (RB), and white (W)] at an intensity of 125 µmol.m −2 .s −1. In both cultivars, the longest and shortest vase lives were observed in spathes exposed to the R and B spectra, respectively. In both cultivars, electrolyte leakage (EL) of spathe was highest under the B and W spectra and lowest under the R spectrum. The highest rate of flower water loss from the spathes was observed under the B-containing light spectra, whereas the lowest rate of water loss was observed in D and under the R spectrum. Negative correlations were observed between EL and vase life and between anthocyanin concentration and EL for both Anthurium cultivars. A positive correlation was found between anthocyanin concentration and vase life. For both Anthurium cultivars, spectral light composition with higher percentage of B resulted in higher EL and as a result shorter vase life in cut flowers under cold storage condition. The negative effect of the B light spectrum on vase life of Anthurium can be explained through its effect on water loss and on oxidative stress and membrane integrity. The quality of Anthurium cut flowers should benefit from environments with restricted B light spectrum during postharvest handling.

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Section: Introductionmentioning

confidence: 99%

Postharvest Spectral Light Composition Affects Chilling Injury in Anthurium Cut Flowers

et al. 2020

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“…Irradiation with blue LEDs triggered increased phenolic compound accumulation and phenolic compound biosynthesis-related gene expression [ 59 , 74 , 77 ]. Irradiation with red LEDs alone was also shown to enhance the concentrations of important phytochemicals in various plant species [ 65 , 69 , 70 , 73 ]. Additionally, irradiation with LED combinations at different ratios enhanced phytochemical contents in plant species [ 54 , 56 , 67 , 71 , 76 , 177 , 178 , 179 ].…”

Section: Resultsmentioning

confidence: 99%

Application of Light-Emitting Diodes for Improving the Nutritional Quality and Bioactive Compound Levels of Some Crops and Medicinal Plants

et al. 2021

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Light is a key factor that affects phytochemical synthesis and accumulation in plants. Due to limitations of the environment or cultivated land, there is an urgent need to develop indoor cultivation systems to obtain higher yields with increased phytochemical concentrations using convenient light sources. Light-emitting diodes (LEDs) have several advantages, including consumption of lesser power, longer half-life, higher efficacy, and wider variation in the spectral wavelength than traditional light sources; therefore, these devices are preferred for in vitro culture and indoor plant growth. Moreover, LED irradiation of seedlings enhances plant biomass, nutrient and secondary metabolite levels, and antioxidant properties. Specifically, red and blue LED irradiation exerts strong effects on photosynthesis, stomatal functioning, phototropism, photomorphogenesis, and photosynthetic pigment levels. Additionally, ex vitro plantlet development and acclimatization can be enhanced by regulating the spectral properties of LEDs. Applying an appropriate LED spectral wavelength significantly increases antioxidant enzyme activity in plants, thereby enhancing the cell defense system and providing protection from oxidative damage. Since different plant species respond differently to lighting in the cultivation environment, it is necessary to evaluate specific wavebands before large-scale LED application for controlled in vitro plant growth. This review focuses on the most recent advances and applications of LEDs for in vitro culture organogenesis. The mechanisms underlying the production of different phytochemicals, including phenolics, flavonoids, carotenoids, anthocyanins, and antioxidant enzymes, have also been discussed.

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“…There are many reports on the concentrations of aromatic compounds in sweet basil under artificial light environments. For example, the effects of five levels of PPFDs with the same R/B ratio (Pennisi et al, 2020), several R/B ratios with the same PPFD (Hosseini et al, 2018;Pennisi et al, 2019), and combinations of several light qualities (Carvalho et al, 2016) on the concentration of aromatic and bioactive compounds and antioxidant capacity have been investigated. However, no clear trend or effect resulting from PPFD or light quality was reported in these studies.…”

Section: Eugenol and Linalool As Aromatic Compoundsmentioning

confidence: 99%

“…Pennisi et al (2020) reported that a PPFD of 250 μmol•m −2 •s −1 was optimal for growth and water, energy, and light use efficiency of lettuce and basil plants under a constant R/B ratio of 3.0 (R:B = 3:1). The effects of combinations of blue, red (Pennisi et al, 2019), green (Nguyen and Saleh, 2019), and other light qualities (Carvalho et al, 2016), including white light (Hosseini et al, 2018), on the growth (Frąszczak et al, 2014), concentrations of functional and aromatic compounds (Frąszczak et al, 2015), and antioxidant capacity (Carvalho et al, 2016) of basil under a constant PPFD have also been reported. Ohashi-Kaneko et al (2013) cultivated some herbs under illumination with monochromatic red or blue light or mixed R/B light from LED lamps.…”

Section: Introductionmentioning

confidence: 99%

Effects of Photosynthetic Photon Flux Density and Red/Blue Light Ratio on the Leaf Shape and Concentrations of Functional and Aromatic Compounds in Sweet Basil (<i>Ocimum basilicum</i> L.)

2021

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Sweet basil (Ocimum basilicum L.), one of the most widely consumed herbs globally, is used in raw or processed food, and for aromatic essential oils. We investigated the effects of photosynthetic photon flux density (PPFD; 150, 225, and 300 μmol•m −2 •s −1 , herein, referred to as P150, P225, and P300) and red to blue light ratios (R/B ratio) (R:B = 1:4, 1:1, and 4:1, herein, referred to as R/B 0.25, 1.0, and 4.0) with a 16 h light period on the leaf shape and concentrations of functional and aromatic compounds in basil. Total leaf dry weight and leaf mass per area increased with increasing PPFD and R/B ratio. Total leaf area tended to increase with increasing R/B ratio at the same PPFD. Although the highest growth was noted when R/B was 4.0 at P300, the leaves showed ruggedness and curling. β-Carotene concentration based on the leaf dry weight and leaf area at the fourth node increased with decreasing R/B ratio, regardless of PPFD. Concentrations of aromatic compounds (eugenol and linalool) based on dry weight were significantly higher at P150 than at other PPFDs and in treatments with greater amounts of red light. These results suggest that basil growth, appearance, and functional and aromatic compound concentrations can be adjusted as needed by manipulating the PPFD and R/B ratio, although R/B 4.0 at P300 caused malformed leaves.

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Alteration of Bioactive Compounds in Two Varieties of Basil (Ocimum basilicum) Grown Under Different Light Spectra

Cited by 25 publications

References 32 publications

Postharvest Spectral Light Composition Affects Chilling Injury in Anthurium Cut Flowers

Postharvest Spectral Light Composition Affects Chilling Injury in Anthurium Cut Flowers

Application of Light-Emitting Diodes for Improving the Nutritional Quality and Bioactive Compound Levels of Some Crops and Medicinal Plants

Effects of Photosynthetic Photon Flux Density and Red/Blue Light Ratio on the Leaf Shape and Concentrations of Functional and Aromatic Compounds in Sweet Basil (<i>Ocimum basilicum</i> L.)

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